I attended KubeCon China last year and there was a very good example of a K8s setup for IoT that scales pretty well. Check these links if you’re curious:
- https://schd.ws/hosted_files/kccncchina2018english/18/ShengL...
- https://thenewstack.io/rancher-takes-kubernetes-management-t...
Disclaimer: not affiliated with any of the companies above. Edit: formatting.